二维斑点追踪成像对肺动脉高压患者右室长轴收缩功能的诊断价值  

Diagnostic value of two-dimension speckle-tracking imaging for right ventricular systolic function of long axis in patiens with pulmonary hypertension

作　　者：冯益萍[1] 芮逸飞[1] 范莉[1] 黄俊[1] 

机构地区：[1]南京医科大学附属常州市第二人民医院心超室,江苏省常州市213000

出　　处：《临床超声医学杂志》2014年第5期322-324,共3页Journal of Clinical Ultrasound in Medicine

摘　　要：目的探讨二维斑点追踪成像(2D-STI)对肺动脉高压(PH)患者右室长轴收缩功能的临床应用价值。方法 45例PH患者(PH组)和30例体检健康者(对照组)使用2D-STI对其行心尖四腔心切面探查,获取右室游离壁及室间隔长轴6节段的收缩期峰值应变(PSS)及收缩期峰值应变达峰时间(PSST)。结果 PH组右室游离壁的基底段、中间段、心尖段及室间隔中间段、心尖段PSS均小于对照组(均P<0.05),而两组室间隔基底段的PSS差异无统计学意义。PH组右室长轴PSST为(73.22±37.64)ms,较对照组(38.13±17.12)ms延长(P<0.05)。结论 2D-STI技术可准确评估右室整体及节段收缩功能及同步性,是评价右室功能简便、快捷的新方法。Objective To assess right ventricular （RV） systolic function of long axis using two dimension speckle-tracking imaging（2D-STI）. Methods Forty-five patients with pulmonary hypertension（PH） underwent 2D-STI in apical 4-champer view,peak systolic strain（PSS） and time to peak systolic strain（PSST） for the six segments of longitudinal of RV free wall and septal wall were calculated,meanwhile 35 normal adults were analyzed as controls. Results PSS of RV free wall in patiens with PH were lower than that in normal controls of basal,middle and apical segments（all P〈0.05）. PSS of septal wall were lower than that in normal controls of middle apical segments in PH group （all P〈0.05）,but basal segments had no difference between two groups. Large mechanical dyssynchrony of RV longitudinal was shown between two groups：PSST（73.22±37.64）ms vs （38.13 ±17.12）ms （P〈0.05）. Conclusion 2D-STI can be used as a useful technique in assessing right ventricular global and segments systolic function and synchronism.

关 键 词：二维斑点追踪成像 收缩功能 右室 

分 类 号：R714[医药卫生—妇产科学] R540.45[医药卫生—临床医学]